Rendering-tank.



PATNNTBN DEG. 15,11903` l E. R. EnsoN a; B. P. SILLMAN.

` RENDERING TANK.

APPLIUATION FILED MY 4, 1903.

H0 MODEL.

VUNITED STATES Patented December 15, 1903.

PATENT rrrcE.

EUGENE RILEY EDSON AND BENJAMIN F. SILLIMAN, OF CLEVELAND, OILIIO, ASSIGNORS TO THE EDSON REDUCTION MACHINERY COMPANY, OF. AUGUSTA, MAINE, A CORPORATION OE MAINE.

RENDERING-TANK.

SPECIFICATION forming part of Letters Patent No. 747,303, dated December 15, 1903 Application liled May 4. 1903. Serial No. 155,609. (No model.)

To a/ZZ whom it may concern:-

Beit known that we, EUGENE RILEY EDSON and BENJAMIN F. SILLIMAN, citizens of the United States of America, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Rendering or Reducing Tanks; and We dohereby declare the following to be a full, clear, and exact description lo of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in jacketed rendering or reducing tanks or rer5 ceptacles, and more especially to a sectional rendering tank or receptacle, which is provided centrally of its chamber wherein organic material is to be rendered or reduced with a vertically-arranged heating-drum dezo pending from and removably secured to the top or upper head of the receptacle and having an interior chamber which is in open relation at the upper and lower ends of the drum with the chamber of the jacket of the z5 receptacle.

One object of this invention is to provide a tank or receptacle of the character indicated, which consists in the main of a vertically-arranged cylinder composed of correspondingly- 3o arranged interchangeable annular sections, which consist each of an annular cast-iron shell, which is hollow or chambered interiorly to forni a heating-duid receiving or heating chamber, which is arranged externally of and extends around the chamberin which material is rendered or reduced, with each cylinder-section provided at each end and externally with a laterallyand outwardly projecting annular ange, with adjacent iianges of adjacent cyl- 4o inder-sections separably secured together,

with the top or upper head of the tank or receptacle resting upon and removably secured to the upper flange of the upper cylinder-section, with the lower cylinder-section resting at its lower ange upon the upper end of the upwardly-Hari ng shell which forms the mouth of the downwardly-discharging outlet of the receptacle, with communication between the heating-chambers of adjacent cylinder-sections suitably established, and with communi- 5o cation between the heating-chamber of the lower cylinder-section in communication with a heating-fluid receiving or heating chamber formed in the surrounding wall of the aforesaid mouth.

Another object is to render the heatingdrum within the tank or receptacle reversible end for end.

The primary object of this invention is to render the tank or receptacle long-lived and 6o simple and convenient in the assemblage and renewal of parts. i

With these objects in view and to the end of realizing other advantages hereinafter appearing this invention consists in certain features of construction and combinations ofl parts, hereinafter described, and pointed out in the claims.

The accompanying drawing is a side elevation, mainly in central vertical section, of a 7c rendering or reducing` tank or receptacle embodying the invention which constitutes the subject-matter of this application.

The said tank or receptacle consists in the main of an interiorly chamber-ed jacketed 75 vertically-arranged cylinder comprising two correspondingly-arranged annular cast-iron cylinder-sections A, which correspond in construction and are assembled the one upon the upper end of the other, and B designates the 8o chamber within the -said cylinder, within which chamber material which is to be rendered or reduced is treated, The upper end .of the chamber B is closed by the top or upper head C of the receptacle, and the said chamber communicates at its lower end with the upwardly-Haring mouth of a downwardlydischarging duct or outlet D, which is arranged centrally of the lower end of the receptacle, which mouth is formed by an in- 9o verted-cone-shaped cast-iron shell d, removably secured at its upper end to the lower end of the lower of the aforesaid cylinder-sections.

Each cylinder-section A consists of an annular cast-iron shell which is hollow to form a heating-ii uid receiving or heating chamber E, which is arranged externally of and extends around the chamber B. Each cylindersection A is provided at each end and externally with a laterally and outwardly projecting annular flange ci.

The heating-chamber E of each cylindersection Ahas upper and lower end walls which are slotted or perforated vertically, as at e, to formports arranged at suitable intervals pcircu mferentially of the said cylinder-section.

Communication between the chamber E of the upper cylinder-section A and the chamber E of the lower cylinder-section A is established by the ports e in the adjacent end walls of the said cylinder-sections-that is, the ports e in the lower end wall of the chamber E of the upper cylinder-section A register with the ports e in the upper end wall of the chamber E of the lower cylinder-section A. The slots or perforations e in the upper end wall of the chamber E of the upper cylinder-section A and the slots or perforations c in the lower end Wall of the chamber E of the lower cylinder-section A are arranged in line vertically with the slots or ports e formed in the adjacent end walls of the chambers E of the two cylinder-sections A; but the slots or perforations c in the upper end wall of the chamber E of the upper cylinder-section A are covered by the head C.

Each flange a of each cylinder-section A is providedwith bolt-holes f, which extend vertically through the said flange. Adjacent flanges aof adjacent cylinder-sectionsA have their bolt-holes f in registry and engaged by bolts G, which extend through the said flanges and are arranged with their heads abutting against the upper side of the lower flange of the upper cylinder-section, and nuts g are mounted upon the Shanks of thesaidbolts at the lower side of the upper flange of the lower cylinder-section. The bolt-holesf in the lower` flange of the lowercylinder-section and the bolt-holes f in the upper flange of the upper cylinder-section are arranged in line vertically with the bolt-holes f of adjacent flanges a, of the said cylinder-sections. Bolts H engage the bolt-holes in the upper flange of the upper cylinder section and extend through the head C and are arranged with their heads abutting against the upper side of the said head, and nuts h are mounted upon the Shanks of the said bolts at the under side of the said flange. Bolts K engage the bolt-holes in the lower Bange of the lower cylinder-section and extend through an annular flange F, formed upon and externally of the upper end of the shell d. The bolts K are arranged with their heads abutting against the upper side of the lower flange of the lower cylinder-section, and nuts k are mounted upon the shanks of the said bolts at the under side of the said flange J.

By the construction hereinbefore described it will be observed that the head C is removably secured to the upper cylinder-section; that the upper cylinder-section is removably attached to the lower cylinder-section; that the two cylinder-sections are interchangeable; that each cylinder-section is reversible end for end, and thatthe cylinder formed by the said cylinder-sections is reversible end for end. The importance of the reversibility of the cylinder end for end becomes obvious upon a consideration of thefactthat the inner surface or surfaces of the upper cylindersection-will become Worn more rapidly than the innersurface or surfaces of the lower cylinder-section by the iron-corroding vapors 4and gases ascending within the tank or receptacle during the treatment of material within the said receptacle and that the upper portion of each cylinder-section will be corroded more rapidly than the lower portion of the said cylinder-section.

The shell d is hollow-that is, the surrounding wall of the mouth of the outlet D is interiorly chambered, as at M. The chamber M extends around the said mouth, and the upper end wall of the said chamber is slotted or perforated vertically to form ports m,which register with the ports e, formed in the lower flange d of the lower cylinder-section A. A steam-pipe o communicates with the chamber M and is therefore in open relation with the chambers E, formed, as hereinbefore described, in the walls of the cylinder-sections A. The pipe 0 is provided with a valve p. The drain pipe N communicates with the chamber M at the lower end of the saidchamber and is providedwith anormally closed valve n. A suitably-applied door Q closes the lower end of the outlet D.

A closed interiorly-chambered or hollow drum Ris arranged vertically within and ceutrally of the chamber B and depends from the head C. The drum R comprises a verticallyarranged tubular shell closed at the ends by cast-iron heads fr. Each head r is provided externally with a short arm 5, which is arranged centrally of the said head andprojects outwardly from the head longitudinally of the drum, which arm is provided at its outer end and externally with a flange 6,

which has bolt-holes 7, extending verticallythrough the flange. The holes7 in the flange 6 of the arm 5 of the upper head r of the drum R are engaged by bolts s, which extend vertically through the said flange and vertically through a flange t, formed upon and externally of the lower end of a casting T, which is provided at its upper end and externally with a flange 8, removably secured by screws w to and at the inner side of the head C. The arrangement of the bolt-holes 7 in the flange 6 of the arm 5 of the lower head reorrespond with the arrangement of the boltholes 7 in the flange 6 of the arm 5 of the upper head r. Obviously, therefore, the drum R is attachable at either end to the casting T.

The drum R not only performs the function of preventing caking of material within the chamber B, but also is employed as a heater, having its interior chamber in communication with the heating-chambers E of the cylluder-sections A. Each head r of the drum IOO IIO

IIS

is provided with a lateral port 10, which communicates at its inner end with the interior chamber of the drum and communicates at its outer end with a pipe connection 12, which is removably secured to the said head by screws 13. The pipe connections 12 of both heads r of the drum are arranged at the same side of the drum.

A pipe .fr is screwed at one end into and communicates' with the pipe connection 12 of the upper head r and is screwed at its opposite end into the inner wall of and communicates with the chamber E of the upper cylinder-section A. A pipe y is screwed at one endinto and communicates with the pipe connection 12 of the lower head r and is screwed at its opposite end into the inner wall of the chamber E of the lower cylinder-section A and comlnunicates with the said chamber. It will be observed, therefore, that the pipes a: and 'y are instrumental in establishing communication between the 'interior chamber of the drum R and the heating-chambers E of cylinder-section A equal to the distance which i the pipe y is located from `the lower end of the lower cylinder-section A.

By the construction hereinbefore described i it will be observed that the drum is reversible end for end. Iron-corroding gases and vapors arising from material treated within the tank or receptacle act more rapidly upon the upper portion 0f the said drum, and the importance of the reversibility end lfor end of the said drum is therefore obvious.

`The head C is provided at one side of the drum R with a charging-aperture 3, which is shown closed by a suitably-applied cover 4. The aperture 3 affords access to the chamber B and is preferably large enough to accommodate the passage of the drum R endwise therethrough.

What we claim is- 1. A rendering or reducing tank or receptacle comprising an interiorly-chambered upright cylinder composed of annular cylindersections arranged in line vertically and forming a chamber wherein organic material is to be rendered or reduced and provided each with a heating-chamber which is arranged externally of and extends around the aforesaid material-receiving chamber and has each end wall thereof slotted or perforated vertically, which cylinder-sections are provided, at the ends and externally, with flanges provided with bolt holes which extend vertically th rough the flanges; bolts extending through the bolt-holes of adjacent external flanges of the cylinder-sections; nuts on the shanks of the said bolts; a head extending over and resting upon the upper externalflange of the upper cylinder-section and covering the slots or perforations in the upper end wall of the heating-chamber of the upper cylinder-section; bolts extending through the bolt-holes in the said upper iiange of the upper cylinder-section and through the said head; nuts on the shanks of the last-mentioned bolts, and an upright duct or outlet communicating with the lower end of the aforesaid materialreceiving chamber and having an upwardlyenlarged mouth which is formed by a shell removably secured, at its upper end, to the lower end of the lower cylinder-section and provided with a heating-chamber communicating with the slots or perforations formed in the lower end wall of the heating-chamber of the lower cylinder-section.

2. A rendering or reducing tank or receptacle comprising an interiorly-chambered upright cylinder composed of upright annular cylinder-sections arranged in line vertically and forming a chamber wherein organic material is to be rendered or reduced and con- 1 sisting each of an annular cast-iron shell hollow to form a heating-chamber which is ar'- ranged externally of the aforesaid materialreceiving chamber and has each end wall thereof slotted or perforated vertioally,which cylinder-sections are provided, at their adjacent ends and externally, with annular flanges; bolts extending through the said fianges; nuts on the shanks of the said bolts; a head extending over and resting upon and removably secured to the upper cylinder-section and covering the slots or perforations in the upper end wall of the heating-chamber of the upper cylinder-section, and an upright duct or outlet communicating with the lower end of the aforesaid material-receiving chamber and having an upwardly-enlarged mouth which is formed by a shell removably secured, at its upper end, to the lower end of the lower cylinder-section and provided with a heating-chamber communicating with the slots or perforations in the lower end Wall of the heating-chamber of the lower cylindersection.

3. A rendering or reducing tank or receptacle comprising an interiorly-chambered upright cylinder composed of two upright annular cylinder-sections assembled the one upon the upper end of the other and forming a chamber wherein organic material is to be rendered or reduced and provided each with IIO a heating-chamber which is arranged externally of the aforesaid materialreceiving chamber and has each end wall thereof slotted or perforated vertically, which cylindersections are provided, at their adjacent ends and externally, with flanges; bolts extending through the said flanges; nuts on the shanks of the said bolts; a head extending over and removably secu red to the upper cylinder-section and covering the slots or perforations in the upper end wall of the heatingchamber of the upper cylinder-section; nuts on the shanks of the last-mentioned bolts, and an upright duct or outlet communicating with the` lower end of the aforesaid mawardly-enlarged mouth which is formed by a the aforesaid material-receiving chamber andhas each end wall thereof slotted or perforated vertically, which cylinder-sections are provided each, at the ends and externally, with flanges; a head extending over and resting upon and removably secured to the upper flange of the upper cylinder-section and covering'the slots or perforations in the upper end wall of the heating-chamber of the upper cylinder-section; an upright duct or outlet communicating with the lower end of the aforesaid materialreceiving chamber and having an upwardly-enlarged mouth which is formed by a shell removably secured,xat its upper end, to the lower flange of the lower cylinder-section and provided with a heating-chamber communicating with the slots or perforations in the lower end wall of the heating-chamber of thelower cylinder-section.

5. A rendering or reducing tank comprising an interiorly-chambered upright cylinder reversible end for end and composed of sepalrably assembled an n ular cylinder sections arranged in line vertically and forming a chamber wherein organic material is to be rendered or reduced and consisting each of an annular cast-iron shell which is hollow to form a heating-chamber arranged externally of the aforesaid material-receiving chamber, with adjacent end walls of adjacent heatingchambers of the cylinder-sections slotted or perforated to form registering ports establishing communication between the saidv chambers; a head arranged at the upper end of and removably secured to the upper cylinder-section, and a duct or outlet communicating with the lower end of the aforesaid material-receiving chamber and formed by a cast-iron shell removably secured to the lower end of the lower cylinder-section and hollow to form a heating-chamber which communicates with theheating-chamber of the lower cylinder-section.

6. A rendering or reducing tank or receptacle comprising an interiorly-chambered upright cylinder reversible end for end and composed of annular interchangeable cylindersections arranged in line vertically and forming a chamber wherein organic material is to be rendered or reduced and provided each with a heating-chamber arranged externally of and extending round the aforesaid materialreceiving chamber, with the heatingchambers of the cylinder-sections in communication; a head arranged at the upper end of and removably secured to the upper cylinder-section, and a duct or outlet communieating with the lower end' of the aforesaid material-receiving chamber and having a mouth formed by a cast-iron shell removably secured, at its upper end, to the lower end of the lower cylinder-section and hollow to form a heating-chamber communicating with the heating-chamber of the lower cylinder-section.

7. A rendering or reducing tank or receptacle comprising an interiorly-chambered upright cylinder reversible end for end and composedof upright annular cylinder-sections arranged in line vertically and forming a chamber wherein organic material is to be rendered or reduced and consisting each of an annular cast-iron shell which is hollow to form a heating-chamber arranged externally of and extending round the aforesaid materialreceiving chamber, with the heatingchambers of the cylinder-sections in communication; a head instrumental in closing the upper endof the aforesaid material-receiving chamber and removably secured to the upper cylinder-section, and a duct or outlet communicatingwith the lower end of the materialreceiving chamber and having an upwardlyflaring mouth which is formed by an invertedl cone-shaped cast-iron shell removably secured, at its upper end, to the lower end of the lower cylinder-section, which shell is hollow to form a heating-chamber, with communication established between the last-mentioned chamber and the heating-chamber of the lower cylinder-section.

8. A rendering or reducing tank or receptacle comprising an upright cylinder forming IOO a chamber wherein organic material is to be rendered or reduced; a head instrumental in closingl the upper end of the material-receiving chamber; a duct or outlet communicat-` ing with the lower end of the material-receiving chamber; a casting removably'secured to and depending from the aforesaid head at the inner side of the head and provided, at its lower end with a flange having bolt-holes extending vertically through the flange; an upright drum arranged within and centrally of the aforesaid material-receiving chamber and having at each end, a head which has an arm projecting outwardly from and longitudinally of the head and provided, at its outer end, with an external flange having bolt-holes extending vertically through the liange, with the bolt-holes in the flanges of the arms of both drum-heads corresponding in arrangement; bolts extending th rough the flange of the aforesaid casting and through the bolt-holes in the ilange of the arm of the upper drum-head, and nuts on the Shanks of the said bolts.

9. A rendering or reducing tank or receptacle comprising an upright cylinder forming a chamber wherein organic material is to be rendered or reduced; a headinstrumental in closing the upper end of the material-receiving chamber; a duct or outlet communicating with the lower end of the materialreceiving chamber; an upright heating-drum arranged within and centrally of the aforesaid material-receivin g chamber, which drum is reversible end for end and removably attached, at its upper end, to the aforesaid head.

l0. A rendering or reducing tank or receptacle comprising an interiorly-chambered npright cylinder composed of annular cylindersections arranged in line vertically and forming a chamber wherein organic material is t be rendered or reduced, which sections are each provided with a heating-chamber arranged externally of the aforesaid material- .receiving chamber; a head instrumental in closing the upper end of the material-receiving chamber and removably secured to the upper cylinder-section; a duct or outlet communicating with the lower end of the material-receiving chamber and having its mouth ranged a distance from the upper end of the Y upper cylinder-section equal to the distance which the lower pipe is arranged from the lower end of the lower cylinder-section.

Signed by usat Cleveland, Ohio, this 28th day of April, 1903.

EUGENE RILEY EDSON. BENJAMIN F. SILLIMAN.

' Witnesses:

C. H. DORER, TELSA SCHWARTZ. 

